21098864

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28057}}^1$

素因数の和:28112

約数の個数: 20

約数和(自身を含む): 41750304

約数和(自身を除く): 20651440

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28057, 56114, 112228, 224456, 448912, 1318679, 2637358, 5274716, 10549432, 21098864]

約数ペア:

[(1, 21098864), (2, 10549432), (4, 5274716), (8, 2637358), (16, 1318679), (47, 448912), (94, 224456), (188, 112228), (376, 56114), (752, 28057)]